package com.atguigu.srb.base.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author lupengning
 * @version 1.0
 * @description:
 * @date 2021/6/4 2:36
 */
@Configuration
public class RedisConfig {
  @Bean
  public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory redisConnectionFactory) {

    RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
    redisTemplate.setConnectionFactory(redisConnectionFactory);

    //首先解决key的序列化方式
    StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
    redisTemplate.setKeySerializer(stringRedisSerializer);

    //解决value的序列化方式
    Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);

    //序列化时将类的数据类型存入json，以便反序列化的时候转换成正确的类型
    ObjectMapper objectMapper = new ObjectMapper();
    //objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);

    // 解决jackson2无法反序列化LocalDateTime的问题
    objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    objectMapper.registerModule(new JavaTimeModule());

    jackson2JsonRedisSerializer.setObjectMapper(objectMapper);


    redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
    return redisTemplate;
  }
}
